EP0326135B1 - Trägervlies für ablösbar imprägnierte Reagenzien - Google Patents

Trägervlies für ablösbar imprägnierte Reagenzien Download PDF

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Publication number
EP0326135B1
EP0326135B1 EP89101354A EP89101354A EP0326135B1 EP 0326135 B1 EP0326135 B1 EP 0326135B1 EP 89101354 A EP89101354 A EP 89101354A EP 89101354 A EP89101354 A EP 89101354A EP 0326135 B1 EP0326135 B1 EP 0326135B1
Authority
EP
European Patent Office
Prior art keywords
cellulose
fibres
carrier fleece
carrier
fleece according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89101354A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0326135A1 (de
Inventor
Manfred Dr. Baier
Helmut Dr. Jering
Rolf Dipl.-Ing. Lerch
Dieter Dr. Mangold
Ellen Dr. Mössner
Gunter Dr. Pappert
Siegfried Dr. Nötzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roche Diagnostics GmbH
Original Assignee
Roche Diagnostics GmbH
Boehringer Mannheim GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Roche Diagnostics GmbH, Boehringer Mannheim GmbH filed Critical Roche Diagnostics GmbH
Priority to AT89101354T priority Critical patent/ATE87742T1/de
Publication of EP0326135A1 publication Critical patent/EP0326135A1/de
Application granted granted Critical
Publication of EP0326135B1 publication Critical patent/EP0326135B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
    • G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
    • G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
    • G01N33/544—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals the carrier being organic
    • G01N33/545—Synthetic resin
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/02—Synthetic cellulose fibres
    • D21H13/08—Synthetic cellulose fibres from regenerated cellulose
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/16—Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/24—Polyesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10—Organic non-cellulose fibres
    • D21H13/20—Organic non-cellulose fibres from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/26—Polyamides; Polyimides
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/38—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing crosslinkable groups
    • D21H17/39—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing crosslinkable groups forming ether crosslinkages, e.g. alkylol groups
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00—Chemistry: molecular biology and microbiology
    • Y10S435/805—Test papers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S435/00—Chemistry: molecular biology and microbiology
    • Y10S435/97—Test strip or test slide
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
    • Y10S530/81—Carrier - bound or immobilized peptides or proteins and the preparation thereof, e.g. biological cell or cell fragment as carrier
    • Y10S530/812—Peptides or proteins is immobilized on, or in, an organic carrier
    • Y10S530/813—Carrier is a saccharide
    • Y10S530/814—Cellulose or derivatives thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
    • Y10S530/81—Carrier - bound or immobilized peptides or proteins and the preparation thereof, e.g. biological cell or cell fragment as carrier
    • Y10S530/812—Peptides or proteins is immobilized on, or in, an organic carrier
    • Y10S530/815—Carrier is a synthetic polymer

Definitions

  • the invention relates to a carrier fleece for detachably impregnated reagents.
  • test kits that contain all the components required for an analysis are already commercially available for these determinations, which must be carried out continuously.
  • the individual components are available as solutions that can then be dosed easily and quickly.
  • determination methods using reagents in solutions are easiest to carry out.
  • substances, in particular biologically active molecules are not stable in solution and can therefore not be stored in this form for a longer period.
  • a carrier fleece with which reagents, in particular conjugates of haptens, antigens and antibodies, can be detachably impregnated with labeling substances and protein conjugates.
  • These carrier fleeces should bind the reagents in such a way that there is no loss of activity. Neither enzymes that are impregnated alone or as conjugates, nor biologically active substances may lose their activity through drying and storage.
  • the conjugate is said to be immersed in the sample solution can be eluted easily and completely.
  • the carrier fleece absorbs a defined, reproducible amount of the reagent per unit area.
  • the carrier fleece must be such that it can be broken up by machine, both in the wet and in the dry state. It must not tear when wet or dry.
  • the carrier fleece should stabilize the reagent so that there is no loss of activity even when stored for a long time.
  • a nonwoven fabric having the above-mentioned composition fulfills all of the above-mentioned tasks. It leads to a stabilization of the reagents so that there is no loss of activity even after very long storage.
  • the carrier fleece can be divided very easily by machine, but does not tear either in the moist or in the dry state. The reagent applied is not detached during storage, but is immediately and completely eluted when immersed in the sample solution. An unspecific binding of substances present in the sample solution does not occur.
  • the carrier fleece must consist of three components.
  • the first component is fibers based on cellulose. All known fibers, which consist predominantly of cellulose, are suitable. Cellulose fibers, cellulose and linters are preferably used as cellulose fibers.
  • a cellulose is a material that is obtained by alkalizing cellulose to alkali cellulose, then treating with carbon disulfide to form cellulose xanthates, dissolving the cellulose xanthates in lye and spinning to viscose filament yarn. Pulp can be obtained by a complete chemical digestion of cellulosic materials and subsequent bleaching. Linters are short, non-spinnable cotton fibers that are obtained from cotton seeds.
  • a mixture of rayon and linters is preferably used in a ratio of 5 to 1: 1.
  • the second component are polymer fibers based on polyester and / or polyamide. Pure polyester and / or polyamide fibers and mixed fibers can be used. Polyamides with a specific weight of 1.14 to 1.15 g / cm3, a cutting length of 4-6 mm and a fiber fineness of 2.2 dtex are particularly preferably used. Particularly preferred polyester fibers are fibers with a specific weight of approx. 1.17 g / cm3, a cutting length of 3 - 6 mm and a fiber fineness of 1.7 - 3.3 dtex.
  • the cellulose and polymer fibers preferably have a fiber fineness of 1.7 to 4.5 detex and have lengths of 3 to 12 mm.
  • the carrier fleece according to the invention contains an organic binder which has OH and / or ester groups.
  • organic binder which has OH and / or ester groups.
  • Polyvinyl alcohol and acrylic acid esters are preferably used for this purpose (polyacrylic acid esters).
  • the polyvinyl alcohol is preferably used as a fiber material with a cutting length of 4 mm and a specific weight of 1.26-1.30 g / cm3.
  • the acrylic acid ester is a non-ionic, self-crosslinking acrylic resin dispersion.
  • a carrier fleece is produced from these three components and water on an inclined screen machine using the usual paper production processes. No further additives and auxiliary substances are required.
  • the carrier fleece according to the invention is preferably composed of 5 to 60% by weight of cellulose-containing fibers and 40 to 95% by weight of polymer fibers and, based on the weight of the fiber fraction, contains 5 to 30% by weight of binder. If polyester fibers are used as polymer fibers, the proportion of polymer fibers is preferably in the upper range, ie 60 to 95%. If polyamide fibers are used as polymer fibers, the proportion is preferably in the lower range, in particular 40 to 60%.
  • the carrier fleece according to the invention is very well suited for impregnation with reagents for immunological determinations. Another object of the invention is therefore the use of the carrier fleece according to the invention for the detachable impregnation of reagents for immunological determinations such as e.g. of haptens, antigens, antibodies and / or their fragments and conjugates of these immunologically active substances with labeling substances and of synthetic peptides.
  • the carrier fleece according to the invention is also suitable for detachable impregnation of other binding partners such as e.g. Biotin / Avidin / Streptavidin, Protein A / IgG or Concanavalin A / Mannose.
  • the carrier webs according to the invention are preferably used for the removable impregnation of conjugates from immunologically active substances and labeling substances, such as e.g. Enzymes used. They are particularly preferably used for the removable impregnation of ⁇ -galactosidase conjugates.
  • a carrier fleece was produced, which consists of 80 parts of polyester fibers with a fineness of 3.3 dtex and a fiber length of 4 mm, 20 parts of cellulose with a fineness of 1.7 dtex and a cutting length of 3 mm, and 20 parts of polyvinyl alcohol fibers with a cutting length of 4 mm.
  • the fibrous materials polyester, rayon and polyvinyl alcohol were whipped or separated with water at a consistency of 0.3% in mixing paper.
  • the fibrous material was then pumped onto a rotating sieve. While the fiber mixture is dewatered or the water is sucked off by vacuum, the fibers orient themselves on the top of the sieve and are contact-dried as a fleece with a dry matter content of approx. 20% via drying cylinders.
  • a carrier fleece was produced which had the following composition: Polyamide: Fineness of fiber 2.2 dtex / cutting length 6 mm 40% Cotton wool: Fineness of fiber 1.7 dtex / cutting length 3 mm 30% Linters: 20% Polyvinyl alcohol: Cutting length 4 mm 10%.
  • carrier webs were produced and impregnated with a conjugate of polyclonal sheep antidigoxin-antibody-Fab fragments and ⁇ -galactosidase (PAK ⁇ Dig> -S-Fab (IS) - ⁇ -Gal).
  • the carrier webs were impregnated in such a way that each carrier web had an enzyme activity of 1249 mE.
  • These carrier webs were placed in an aqueous solution and the activity transferred into the solution was determined.
  • the corresponding amount of conjugate was dissolved in 20 ul 100 mmol / l Hepes, pH 7.25 + 1.5% polyethylene glycol (PEG 6000) and a fleece (6x8.4 mm) soaked with this solution.
  • the fleece was spiked with metal needles and dried immediately after the impregnation for 30 minutes at 35 ° C. in a forced-air drying cabinet, then immediately placed in drying tubes and stored at 4 ° C. overnight.
  • the carrier webs impregnated in this way each had an enzyme activity of 1249 mE.
  • the nonwovens are mixed with 1 ml incubation buffer (100 mmol / l Hepes, pH 7.25, 0.9% NaCl, 2 mmol / l MgApartate, 0.1% bovine serum albumin, 0.2% Tween® 20 (polyoxyethylene sorbitan carboxylic acid ester )) eluted. The enzyme activity transferred into the solution is then determined.
  • the support fleeces soaked were tested for their stability. They were stored for 3 weeks at 35 ° C with 2% moisture. Nonwovens were used as a reference, which were stored in the refrigerator at + 4 ° C with 2% moisture as well as unloaded paper fleeces.
  • EA enzymatic activity after elution of the reagent was determined by adding 5 mmol / l chlorophenol red- ⁇ -D-galactoside (produced according to DE 33 45 748) in water, in which the increase in extinction was monitored at 578 nm .
  • Immunological activity was also determined. For this purpose, a 1: 5 diluted human serum containing a certain amount of digoxin (0 to 5 ng / ml) was added to the eluted immunological reagent. The mixture was incubated at 37 ° C. for 5 minutes and the mixture was then added to a solid phase which contained immobilized digoxin. Free conjugate is bound from the solid phase, and the supernatant can then be used to determine the enzymatic activity as above. The measurement signal is proportional to the amount of digoxin in the sample.
  • a fleece was made from 90 parts polyester, 10 parts of cellulose and, based on the fibers, 30 parts of acrylic acid ester.
  • a conjugate was applied to this fleece.
  • the elution ability was checked. 99% of the activity applied was in the solution after elution.
  • a fleece was made from 30 parts of polyamide, 20 parts of linters, 30 parts of cellulose and 10 parts of polyvinyl alcohol.
  • This fleece was impregnated with a solution containing an immunological conjugate and then dried. Elution ability was then tested. 98% of the applied amount of activity could be detected in the eluted solution.

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  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Hematology (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Cell Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Biotechnology (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Peptides Or Proteins (AREA)
  • Nonwoven Fabrics (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
EP89101354A 1988-01-27 1989-01-26 Trägervlies für ablösbar imprägnierte Reagenzien Expired - Lifetime EP0326135B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89101354T ATE87742T1 (de) 1988-01-27 1989-01-26 Traegervlies fuer abloesbar impraegnierte reagenzien.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3802366 1988-01-27
DE3802366A DE3802366A1 (de) 1988-01-27 1988-01-27 Traegervlies fuer abloesbar impraegnierte reagenzien

Publications (2)

Publication Number Publication Date
EP0326135A1 EP0326135A1 (de) 1989-08-02
EP0326135B1 true EP0326135B1 (de) 1993-03-31

Family

ID=6346094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89101354A Expired - Lifetime EP0326135B1 (de) 1988-01-27 1989-01-26 Trägervlies für ablösbar imprägnierte Reagenzien

Country Status (6)

Country Link
US (1) US5118609A (enrdf_load_stackoverflow)
EP (1) EP0326135B1 (enrdf_load_stackoverflow)
JP (1) JPH01239148A (enrdf_load_stackoverflow)
AT (1) ATE87742T1 (enrdf_load_stackoverflow)
DE (2) DE3802366A1 (enrdf_load_stackoverflow)
ES (1) ES2040901T3 (enrdf_load_stackoverflow)

Cited By (1)

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US7026002B1 (en) 1999-06-18 2006-04-11 Roche Diagnostics Gmbh Element, method and kit for the determination of an analyte in a liquid

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DE4439429C2 (de) * 1994-07-25 1997-11-20 Boehringer Mannheim Gmbh Verfahren zum Nachweis der Kontamination einer Oberfläche mit einem Analyten
EP0699906B1 (de) 1994-07-25 2002-04-24 Roche Diagnostics GmbH Verfahren zum Nachweis der Kontamination einer Oberfläche mit einem Analyten
AU734423B2 (en) * 1995-11-27 2001-06-14 Roche Diagnostics Corporation Article for collecting and transporting a sample to be analyzed and procedure for determining an analyte
DE19622503C2 (de) * 1996-06-05 1998-07-09 Securetec Sicherheitstechnolog Verfahren zum Nachweis von Analyten auf einer Oberfläche
DE19816550A1 (de) * 1997-12-24 1999-06-24 Roche Diagnostics Gmbh Universell verwendbarer Aufbau eines Analysenelements und dessen Einsatz zur Analytbestimmung
FI108478B (fi) 1998-01-21 2002-01-31 Nokia Corp Sulautettu jõrjestelmõ
GB2380259A (en) * 2001-09-05 2003-04-02 Whatman Plc Stable storage of proteins
WO2003020924A2 (en) * 2001-09-05 2003-03-13 Whatman Plc Stable storage of proteins
US6927062B2 (en) 2002-11-25 2005-08-09 Agdia, Inc. Controls and standards for assays and method for manufacture thereof
EP1808696B1 (de) * 2006-01-14 2009-03-11 Roche Diagnostics GmbH Immunologisches Testelement mit verbesserter Kontrollzone
EP2381258A1 (de) 2010-04-26 2011-10-26 Securetec Detektions-Systeme AG Mikrofluidiksystem mit Probenvorbehandlung
EP2637021A1 (de) 2012-03-06 2013-09-11 Securetec Detektions-Systeme AG Verfahren und Vorrichtung zum Nachweis von Analyten
EP2722669A1 (de) 2012-10-22 2014-04-23 Securetec Detektions-Systeme AG Verfahren und Vorrichtung zum Nachweis von illegalen Drogen
EP3329991A1 (en) 2016-12-02 2018-06-06 Securetec Detektions-Systeme AG Drug detection via surface enhanced raman spectroscopy
DE102019117289A1 (de) * 2019-06-27 2020-12-31 Katja Werner Trägermaterial, Kitsystem und Verfahren für biologische Assays

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US4588555A (en) * 1982-10-04 1986-05-13 Fmc Corporation Device for use in chemical reactions and analyses
EP0167175B1 (de) * 1984-07-06 1989-05-24 Roche Diagnostics GmbH Vorrichtung zum Durchspülen einer in einem Feld befindlichen Substanz mit einem flüssigen Spülmittel in mehreren Spülvorgängen und zur Überführung des beim letzten Spülvorgang aus dem Feld austretenden Spülmittels in eine Küvette
EP0167171B1 (de) * 1984-07-06 1991-12-04 Roche Diagnostics GmbH Verfahren und Vorrichtung zur Durchführung analytischer Bestimmungen

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ATE87742T1 (de) 1993-04-15
DE3802366A1 (de) 1989-08-10
ES2040901T3 (es) 1993-11-01
JPH01239148A (ja) 1989-09-25
DE58903903D1 (de) 1993-05-06
US5118609A (en) 1992-06-02
JPH0359383B2 (enrdf_load_stackoverflow) 1991-09-10
EP0326135A1 (de) 1989-08-02

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